CN211106621U

CN211106621U - Eraser

Info

Publication number: CN211106621U
Application number: CN201921472627.1U
Authority: CN
Inventors: 刘光成
Original assignee: Zhejiang Qihao Stationery Co ltd
Current assignee: Zhejiang Qihao Stationery Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-07-28
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses an eraser aims at solving the eraser and leads to erasing other useful parts because of the eraser block head is too big at the precision mapping in-process and reduces the efficiency of precision drawing, and its technical scheme main points are: the rubber body is externally provided with a shell, the other end of the shell is provided with a rubber replacing opening, a threaded push rod mechanism is arranged in the shell and comprises a threaded push rod and a threaded fixing block, the threaded push rod and the threaded fixing block are movably connected, the threaded fixing block is fixed on the shell, a groove is formed in the bottom of the threaded push rod, and the groove is tightly clamped with one end of the rubber body. The utility model discloses an eraser can erase the mistake part in the accurate hand drawing effectively and can not erase correct effectual part, has reduced work load, has improved drawing efficiency greatly, is particularly suitable for the accurate drawing and uses.

Description

Eraser

Technical Field

The utility model relates to a stationery field, more specifically says that it relates to an eraser.

Background

The existing erasers are various and meet different requirements, the tail of some pencils is provided with a small eraser, the erasers are pink, the surface of the erasers is smooth colloid, the erasers have good performance in most occasions, if the force is too heavy, the erasers can break paper, the erasers can leave residues on the paper after handwriting is erased, if the erasing is not well cleaned, the residues can leave marks on the paper, the erasers are common brown erasers for artists and are made of soft and rough rubber, the erasers are convenient to erase large-area marks and cannot break the paper, but the erasers can not erase the handwriting effectively and accurately, and the erasers are also called soft erasers, mainly made of grey materials and are rubber-like, the intensity of the erasers can not leave residues, and the service life of the erasers is longer than that of other erasers, the eraser can not only erase handwriting, but also can be used as a prominent part or make works more detailed, however, the eraser is not good for removing large-area handwriting, and can stain and even stick paper if being heated excessively, in our daily life, the eraser is still widely used, but most of erasers in the market are large in block heads, even if the eraser with a small block head is used, the eraser is inconvenient, particularly, when precise hand drawing is carried out, lines which do not need to be erased are easily erased when some small places are erased and modified, and then the lines are redrawn, so that a lot of unnecessary workload is increased, and the efficiency of drawing is greatly influenced.

In order to solve the problems, the eraser disclosed in chinese patent publication No. CN102653205A can effectively solve the problem of inconvenience in erasing in a precise hand-drawn drawing, and comprises a cylindrical eraser fixing rod, wherein a cylindrical eraser body is arranged inside the cylindrical eraser fixing rod along a center line. The eraser can effectively erase the error part in the precise hand-drawing without erasing the correct and effective part, reduces the workload, greatly improves the drawing efficiency, and is particularly suitable for precise drawing.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an eraser, in order to satisfy the use in the accurate hand drawing mapping, through set up screw thread push rod structure and clamping piece in the casing, make the overall structure cooperation perfect more, and the casing sets to the shape that the person of facilitating the use held between the fingers, can make the user use less power to accomplish and erase the process.

The above technical purpose of the present invention can be achieved by the following technical solutions: the eraser comprises an eraser body, wherein a shell is arranged outside the eraser body, and the eraser is characterized in that: the rubber replacing device is characterized in that a rubber replacing opening is formed in the other end of the shell, a threaded push rod mechanism is arranged in the shell and comprises a threaded pushing rod and a threaded fixing block, the threaded pushing rod and the threaded fixing block are movably connected, the threaded fixing block is fixed on the shell, a groove is formed in the bottom of the threaded pushing rod, and the groove is tightly clamped with one end of the rubber body.

Through adopting above-mentioned technical scheme, for protecting the rubber body, be equipped with the casing in the outer end of rubber body, be used for protecting the rubber body difficult dirty and difficult book, and the user is not direct and rubber body contact, thereby it makes the top layer of rubber body drop easily to stick on hand to have avoided the rubber body to be heated for a long time, it changes mouthful convenient change of rubber to have set up the rubber at the other end of casing and changed, compare in disposable rubber and saved the cost, be provided with screw thread push rod mechanism in the casing, screw thread push rod mechanism includes screw thread pushing rod and thread fixing block, screw thread pushing rod and thread fixing block are swing joint and the thread fixing block is fixed in on the casing, open the recess in screw thread pushing rod bottom, recess and the one end chucking of rubber body, be used for fixed rubber body not along with erasing the direction removal.

The utility model discloses further set up to: the surface of the shell is provided with a rubber anti-skid layer.

Through adopting above-mentioned technical scheme, be equipped with the rubber skid resistant course on the casing top layer, can prevent that the user from being difficult to hold the casing because of the hand perspires in the use, can't carry out the action of erasing, can let the eraser stably place on the desktop because of the frictional force of rubber skid resistant course and desktop when the eraser is placed on the desktop.

The utility model discloses further set up to: and one end of the threaded pushing rod, which is far away from the shell, is fixedly connected with an end cover.

Through adopting above-mentioned technical scheme, the one end fixedly connected with end cover that the casing was kept away from to the screw propulsion pole can make things convenient for the promotion of screw propulsion pole.

The utility model discloses further set up to: and the thread fixing block is provided with a through hole for the thread pushing rod to pass through.

Through adopting above-mentioned technical scheme, be provided with the through-hole that supplies the screw propulsion pole to pass on the screw thread fixed block for swing joint between screw propulsion pole and the screw thread fixed block.

The utility model discloses further set up to: an internal thread is arranged in the through hole for the threaded pushing rod to penetrate through, and an external thread is arranged on the threaded pushing rod.

Through adopting above-mentioned technical scheme, the screw thread pushing ram is equipped with the external screw thread outward, is equipped with the internal thread in the through-hole that supplies the screw thread pushing ram to pass on the screw thread fixed block, and the internal thread in the through-hole that supplies the screw thread pushing ram to pass through external screw thread and screw thread fixed block to pass through during the propulsion mutually supports and reaches the propulsive effect.

The utility model discloses further set up to: the inside clamping piece that still is provided with of casing, the clamping piece includes three swing briquetting, tensile post, three springs and two fixed frames of placing the spring, tensile post and one of them spring are fixed connection, two in addition the spring is located fixed frame, fixed frame is fixed in the clamping piece edge.

Through adopting above-mentioned technical scheme, the inside clamping piece that still is provided with of casing, the clamping piece includes three swing briquetting, tensile post, three springs and two fixed frames of placing the spring, tensile post and one of them spring are fixed connection, drive the spring through giving tensile power of tensile post and stretch, and two other springs are located fixed frame, and fixed frame is fixed in the clamping piece edge, and the change of rubber body is realized with the laminating through the unclamping of swing briquetting on the clamping piece.

The utility model discloses further set up to: when the edges of the three swinging pressing blocks are jointed, a cavity for clamping is formed in the middle.

By adopting the technical scheme, a cavity for clamping is formed in the middle when the edges of the three swinging pressing blocks are attached, and the rubber body can be replaced when the three swinging pressing blocks are in a loosening state.

The utility model discloses further set up to: and a through groove for stretching the stretching column is formed in the surface of the shell.

Through adopting above-mentioned technical scheme, the casing surface is opened has and is used for the tensile logical groove of tensile post, conveniently stretches the use of post.

To sum up, the utility model discloses following beneficial effect has:

1. in order to protect the eraser body, a shell is arranged at the outer end of the eraser body and used for protecting the eraser body from being easily dirty and folded, and a user does not directly contact with the eraser body, so that the phenomenon that the surface layer of the eraser body falls off and is easily stuck to the hand due to long-time heating of the eraser body is avoided;

2. the rubber anti-slip layer is arranged on the surface layer of the shell, so that the situation that a user cannot tightly hold the shell due to sweating of hands in the using process and cannot erase the shell is avoided, and when the eraser is placed on a table top, the eraser can be stably placed on the table top due to the friction force between the rubber anti-slip layer and the table top;

3. the thread push rod mechanism comprises a thread push rod and a thread fixing block, a through hole for the thread push rod to pass through is formed in the thread fixing block, a part of the thread push rod passes through the through hole for the thread push rod to pass through and is matched with the thread fixing block, and the thread fixing block is fixed on the shell, so that the stability of the thread push rod mechanism is improved;

4. the clamping piece is including swing briquetting, stretching post, spring and the fixed frame of placing the spring, and stretching post is fixed connection with one of them spring, and through for stretching the tensile power drive spring of post and tensile, the clamping piece is located the casing bottom, has increased the fixity of rubber body, spring and swing briquetting fixed connection, and the clamping piece is the unclamping state when the spring is tensile, and the clamping piece is the clamping state when the spring contracts.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention, showing the external features of the eraser;

FIG. 2 is a schematic structural view of the clamping member of the present invention, showing the features of the internal clamping member;

FIG. 3 is a cross-sectional view of FIG. 1 showing the characteristic relationships of the internal screw propulsion mechanism;

in the figure: 1. an eraser body; 2. a housing; 3. an end cap; 4. stretching the column; 5. a spring; 6. a fixing frame; 7. swinging the pressing block; 8. a clamping member; 9. a threaded push rod; 10. a thread fixing block; 11. a threaded push rod mechanism; 12. replacing the port; 13. a through groove; 14. and a rubber anti-slip layer.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in detail with reference to the accompanying drawings.

An eraser, as shown in figure 1, comprises an eraser body 1, a shell 2 is arranged outside the eraser body 1, in order to protect the eraser body 1, the shell 2 is arranged at the outer end of the eraser body 1 and is used for protecting the eraser body 1 from being easily dirtied and folded, and a user does not directly contact with the eraser body 1, so that the phenomenon that the surface layer of the eraser body 1 is easy to fall off and stick on a hand due to long-time heating of the eraser body 1 is avoided, the eraser replacement is convenient due to an eraser replacement port 12 arranged at the other end of the shell 2, the cost is saved compared with a disposable eraser, a rubber anti-slip layer 14 is arranged on the surface of the shell 2, the situation that the user cannot tightly hold the shell 2 due to sweating of the hand in the using process and cannot perform erasing action is avoided, when the eraser is placed on a desktop, the eraser can be stably placed on the desktop due to the friction force between the rubber anti-slip layer 14, the eraser body 1 is made into a core shape, the contact surface of the core-shaped head and paper is small, and the eraser is convenient to use for compact drawing.

The utility model provides an eraser, as shown in fig. 2, the inside clamping piece 8 that still is provided with of casing 2, clamping piece 8 includes three swing briquetting 7, tensile post 4, three springs 5 and two fixed frames 6 of placing spring 5, tensile post 4 is fixed connection with one of them spring 5, it is tensile to drive spring 5 through the power of giving the tensile of tensile post 4, two other springs 5 are located fixed frame 6, fixed frame 6 is fixed in the 8 edges of clamping piece, the change of eraser body 1 is realized with laminating through the unclamping of swing briquetting 7 on the clamping piece 8.

An eraser is characterized in that a threaded push rod mechanism 11 is arranged in a shell 2, the threaded push rod mechanism 11 comprises a threaded push rod 9 and a threaded fixing block 10, the threaded push rod 9 and the threaded fixing block 10 are movably connected, the threaded fixing block 10 is fixed on the shell 2, a groove is formed in the bottom of the threaded push rod 9 and is tightly clamped with one end of an eraser body 1 to be used for fixing the eraser body 1 to be not moved along an erasing direction, and an eraser replacing port 12 is formed in the other end of the shell 2 to facilitate the replacement of the eraser.

When the eraser is used, the eraser body 1 is placed into a groove at the bottom of the threaded push rod 9 through the replacing port 12 for first-step fixing, the clamping piece 8 comprises three swinging pressing blocks 7, a stretching column 4, three springs 5 and two fixing frames 6 for placing the springs 5, the stretching column 4 is fixedly connected with one of the springs 5, the spring 5 is driven to stretch by a stretching force applied to the stretching column 4 outside the through groove 13, the other two springs 5 are positioned in the fixing frames 6, the fixing frames 6 are fixed at the edges of the clamping piece 8, a cavity for clamping is formed in the middle of the three swinging pressing blocks 7 when the edges are attached, the replacing of the eraser body 1 is realized through loosening and attaching of the swinging pressing blocks 7 on the clamping piece 8 and is used for second fixing, the eraser body 1 can be repeatedly used for replacing the eraser body 1 for the next time after being used, the rubber antiskid layer 14 is arranged on the shell 2, when the eraser is not used on a table top, the eraser is not easy to slide due to friction force between the rubber anti-slip layer 14 and the table top, when the part of the eraser body 1 protruding out of the shell 2 is used up, a new used part can be rotated out by rotating the end cover 3, and at the moment, the external threads of the thread pushing rod 9 and the internal threads of the thread fixing block 10 interact with each other, so that a pushing effect is achieved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The eraser comprises an eraser body (1), wherein a shell (2) is arranged outside the eraser body (1), and the eraser is characterized in that: the rubber replacing device is characterized in that a rubber replacing opening (12) is formed in the other end of the shell (2), a thread push rod mechanism (11) is arranged in the shell (2), the thread push rod mechanism (11) comprises a thread pushing rod (9) and a thread fixing block (10), the thread pushing rod (9) and the thread fixing block (10) are movably connected, the thread fixing block (10) is fixed on the shell (2), a groove is formed in the bottom of the thread pushing rod (9), and the groove is clamped with one end of the rubber body (1).

2. An eraser as claimed in claim 1, wherein: the surface of the shell (2) is provided with a rubber anti-slip layer (14).

3. An eraser as claimed in claim 1, wherein: and one end of the threaded pushing rod (9) far away from the shell (2) is fixedly connected with an end cover (3).

4. An eraser as claimed in claim 1, wherein: the thread fixing block (10) is provided with a through hole for the thread pushing rod (9) to pass through.

5. An eraser according to claim 4, wherein: an internal thread is arranged in a through hole for the threaded pushing rod (9) to pass through, and an external thread is arranged on the threaded pushing rod (9).

6. An eraser as claimed in claim 1, wherein: the inside of casing (2) still is provided with clamping piece (8), clamping piece (8) are including three swing briquetting (7), tensile post (4), three spring (5) and two fixed frame (6) of placing spring (5), tensile post (4) are fixed connection with one of them spring (5), two in addition spring (5) are located fixed frame (6), fixed frame (6) are fixed in clamping piece (8) edge.

7. An eraser according to claim 6, wherein: when the edges of the three swinging pressing blocks (7) are jointed, a cavity for clamping is formed in the middle.

8. An eraser according to claim 6, wherein: the surface of the shell (2) is provided with a through groove (13) for stretching the stretching column (4).